Sack-feeder



W. SCOTT.

SACK FEEDER.

APPLICATION man IMAR. 2. 191e.

Patented July 26, 1921.

O. oo ,9, 5 8 3, ,1

3 SHEETS-SHEET i.

W. SCOTT.

SACK FEEDER. APPLICATION FILED MAR.2 ,19I8. 1,385,930, Patented July 26,1921.`

. Y 3 SHEETS-SHEET 2.

l/Y V6 N Tol? WY. SCOTT.

sAcK FEEDER. APPLICATION FILED MAH. 2;-1518' 1,385,930. Patented July26, 1921.

3 SHEETS-SHEET 3|' IWL/.wm SCOT?" Y WILLIAM scorfr,

ortica. i

OF LOGI-IEE, DUNIDEE, SCOTLAND.

SACK-FEEDER.

Application filed March 2, 1918.

(GRANTED UNDER THE PROVISIGNS 0F THE ACT 0F MARCH 3, 1921,

To all @07mm it may concer/n.'

Be it known that I, wl/'Inman Scor'r, a suhject of the Kingof GreatBritain and Ireland, and a resident of Lochee, Dundee, Scotland, haveinvented certain new and useful Sack-Feeders, for which I have madeapplication in England, dated J an. 16, 1917, Patent No. 110,077, ofwhich the following is the specification.

This invention relates to feed mechanism for rotary sack-printing andlike machines, of the type in which the material to be treated is fed bya single endless horizontally traveling cloth; and has for its object toimprove the construction of such feeding` mechanism so that two or moreattendants may be able to feed the machine in series at the same timeand thus increase the output of the machine, while lessening the laborof each attendant. i

The improved feed mechanism comprises essentially a usual endlesshorizontally traveling feed cloth, a plurality of tables arranged inseries on which is placed the material to be transferred by theattendants to the feed cloth, one or more of the tables eX- tending overa part or parts of the feed cloth and the last table being to the rearthereof, and timing rollers for each attendant so that the material fedto the cloth travels forward at the proper time.

An illustrative example of the improved feed mechanism as applied inconnection with a rotary printing cylinder is shown on threeaccompanying sheets of explanatory drawings, Figure l, Sheet l, being aplan, Fig. 2, Sheet 2, a side elevation, and Fig. 3, Sheet 3, an endelevation thereof.

As shown in the drawings there works in conjunction with a rotaryprinting cylinder A an endless traveling feed cloth B supported byrollers C, D, E, one E of these rollers being driven in usual manner bygearing (not shown) from the shaft of the printing c linder. To enabletwo attendants to feed t e machine at the same time, two tables G,

are provided on each of which is placed a pile J of sacks or the like tobe fed on to the traveling feed cloth B. One H of these tables is somade and placed, as shown, that its top extends over a part of the feedcloth B, one of the attendants feeding on to the cloth from the end ofthis table H neXt to the printing cylinder A. The other attendantSpecification of Letters Patent.

Patented July 26', 1921. serial No. 220,055.

41 STAT. Il., 1313.)

feeds the sacks from the pile J on the other table (l on to the part ofthe upper surface of the feed cloth which is beneath the inclined rearpart of the topl of the forward table H. Y If preferred the two tablesGr, H may be in one structure with a feeding gap where the feed clothpasses over the roller C.

Wvhere the foi-wart. attendant places the end of the sacks on his tableI-I on to the feed cloth B there are the usual timing` rollers K, Lcarried and actuated as shown from a cam M on. a transverse shaft driventhrough gearing-N from the shaft of the printingy cylinder fr; andsimilar timing' rollers P, Q are also placed where the second attendantplaces the end of the sacks taken from the pile on the other table G onto the feed cloth. rfhese timing rollers P, Q are carried by a spindlesupported in levers R, S journaled in the sides of the table I-l andconnected by a stlrrup T with one end of a cord or chain U passing overguide pulleys V, W to the upper end of a lever X journaled in theframing of the machine, this lever being so shaped that a roller Y on italso bears on the timing' cam M. T his cam so acts through the gearing`described on the two sets of timing rollers l, L and I), Q that thesacks are fed onto the cloth I5 successively and travel forw( rd oneafter the other to the printing cylinder without interi'fering one withthe other.

For triple .feeding there will be two tables the tops of which are abovethe traveling feed cloth and a third table to the rear thereof with thenecessary timing` rollers for all three attendants, the traveling clothbeing lengthened and the machine speeded up accordingly.

am aware that in feed mechanism applicable to'certain rotary sheetprinting machines and sheet folding machines it has hitherto beenproposed to provide a number of feeding tables and timing appliancesregulating the delivery of the sheets; but in such machines there haveeither been a plurality of feed ways, or the feed mechanism hasconsisted of cloths,'webs, or tapes with or without grippers and`traveling in other than a horizontal plane only.

In the claims the word Number is to be understood to include one ormore.

What I claim is zl. In rotary sack-printing and like machines of thetype described; feedj1necha n1sm comprising` in combination an endlessfeed cloth traveling" 'only in a horizontal plane, a plurality "oftables arranged in series on which is placed transferred to the feedcloth, certain of these tables extending over the feed cloth and thelast table being to thc rear thereof, and timing rollers for eachattendant so that the material fed to the cloth travels forward at theproper time, as described.

2. In rotary sack-printing and like machines of the type described; feedmecha* nism comprising in combination an endless feed cloth travelingonly ina horizontal plane, a plurality of tables arranged in series onwhich is placed the material to be transferred vto ythe feed cloth, onetable extending over a part of the feed cloth, a second table tov therear thereof, and timing rollers for each attendant so that the materialfed to the clothtravelsl forward at the proper time, as

described.

3. In rotary sack-printingvand like mathe material to be V chines of thetype described; feed mecha nism comprising in combination an endlesshorizontally traveling' feed cloth, a plurality of tables arranged inseries on which is placed the material to be transferred to the feedcloth, certain of these tables extending over the feed cloth and thelastV table being` to the rear. thereof, usual timing` rollers for theforward attendant, timing rollersV for the rear attendantsleverssupportingV these latter rollers, a stirrup connecting the levers7 afurther lever ournaled at the forward ,end of the machine, a flexibleconnection between this forward lever and the stirrup, a roller on theforward lever and a timing` cam on which the roller bears, as described.

In testimony whereof l have signed my name to this specification, in thepresence of two subscribing` witnesses.

Witnesses:

VILLIAM ELDER, A VILLIAM KENNEDY.

WILLIAM scorr.

